Security (BC-SEC)

The process of using a cryptographic algorithm to disguise a message to protect it from being intercepted by potential eavesdroppers.

There are two types of encryption:

• Symmetric encryption uses a single key for both encrypting as well as for decrypting the message.
• Assymetric encryption uses a pair of keys that correspond to one another but are not the same. A message that has been encrypted using one key can only be decrypted with the other key and vice versa.